[PATCH] D78979: OpenCL: Include builtin header by default

[Sven van Haastregt via Phabricator via cfe-commits]

svenvh added a comment.

In D78979#2007643 <https://reviews.llvm.org/D78979#2007643>, @Anastasia wrote:

> > Would it not become confusing since the builtins are going to be included by default? Should we rename the flag at least? Also ideally it should be documented in https://clang.llvm.org/docs/UsersManual.html#opencl-header
>
> ah I guess if we leave it under `-cc1 ` we will have the command line interface as follows:
>
> - Driver (without `-cc1`) adds OpenCL header by default that can be overridden by the flag added in this patch.
> - Frontend (with `-cc1`) doesn't add the header by default but there are two flags `-fdeclare-opencl-builtins` or `-finclude-default-header` that allow to include the header.


The name of `-fdeclare-opencl-builtins` becomes a bit non-intuitive, a more intuitive name would be something like `-fopencl-tablegen-builtins` perhaps or `-fopencl-fast-builtins` if we don't want to mention TableGen.  But since it is still an experimental option, I have no objections against postponing the renaming until the option has reached maturity.


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https://reviews.llvm.org/D78979